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Generalized linear competition: from pass-through to policy

Christos Genakos (), Felix Grey and Robert Ritz

CEP Discussion Papers from Centre for Economic Performance, LSE

Abstract: Economic policy and shifts in input market prices often have significant effects on the marginal costs of firms and can prompt strategic responses that make their impact hard to predict. We introduce "generalized linear competition" (GLC), a new model that nests many existing theories of imperfect competition. We show how firm-level cost pass-through is a sufficient statistic to calculate the impact of a cost shift on an individual firm's profits. GLC sidesteps estimation of a demand system and requires no assumptions about the mode of competition, rivals' technologies and strategies, or "equilibrium". In an empirical application to the US airline market, we demonstrate GLC's usefulness for ex ante policy evaluation and identify the winners and losers of climate-change policy. We also show how GLC's structure, under additional assumptions, can be used for welfare analysis and to endogenize the extent of regulation.

Keywords: Pass-through; imperfect competition; regulation; carbon pricing; airlines; political economy (search for similar items in EconPapers)
JEL-codes: D43 H23 L51 L93 (search for similar items in EconPapers)
Date: 2020-07
New Economics Papers: this item is included in nep-env
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Working Paper: Generalized linear competition: From pass-through to policy (2020) Downloads
Working Paper: Generalized linear competition: From pass-through to policy (2020) Downloads
Working Paper: Generalized linear competition: from pass-through to policy (2020) Downloads
Working Paper: Generalized linear competition: From pass-through to policy (2020) Downloads
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